我怎样才能从我的表中删除线条？

Question

我有一张表格，我想让它看起来像下面的第二个表格，其中的线条只在红色处。我想删除所有黑线。我浏览了几个帖子，但没有一个能解决这个问题。这是我目前拥有的，但我完全不知道如何继续。

\begin{table}[t]
    \small
    \begin{tabu} to \textwidth { | X[l] | X[c] | X[c] | X[c] | X[c] | X[c] |}
        \hline
        & \multicolumn{5}{c|}{Precision with label shifted by t seconds} \\
        \cline{5-6}
        & 0 & 1 & 2 & 3 & 4\\
        \hline
        Ours & 0.143 & 0.143 & & & \\
        CNN & 1.518 & 1.518 \\
        JAAD & 0.018 & 0.142 \\
        Keypoints & 0.029 & 0.180 \\
        \hline
        \end{tabu}
    \medskip
    \caption{Time taken to generate a single scale of 100 superpixels and a hierarchy at 100, 150, 200, 300, 400, and 600 superpixels.}
    \label{tab:runtime}     
\end{table}

Answer 1

像这样？

\documentclass{article}
\usepackage{tabu}

\begin{document}

\begin{table}[t]
    \small
    \begin{tabu} to \textwidth {  X[l] | X[c]  X[c]  X[c]  X[c]  X[c] }
%        \hline
        & \multicolumn{5}{c}{Precision with label shifted by t seconds} \\
%        \cline{5-6}
        & 0 & 1 & 2 & 3 & 4\\
        \hline
        Ours & 0.143 & 0.143 & & & \\
        CNN & 1.518 & 1.518 \\
        JAAD & 0.018 & 0.142 \\
        Keypoints & 0.029 & 0.180 \\
%        \hline
        \end{tabu}
    \medskip
    \caption{Time taken to generate a single scale of 100 superpixels and a hierarchy at 100, 150, 200, 300, 400, and 600 superpixels.}
    \label{tab:runtime}     
\end{table}

\end{document}

Answer 2

我会避免tabu并使用siunitx以确保正确处理数字。

\documentclass{article}
\usepackage{siunitx}
\usepackage{booktabs}

\begin{document}

Table~\ref{tab:runtime-BETTER} is better than Table~\ref{tab:runtime}.

\begin{table}[htp]

\begin{tabular*}{\textwidth}{
  @{\extracolsep{\fill}\hspace{\tabcolsep}}
  l|
  *{5}{S[table-format=1.3]}
}
& \multicolumn{5}{c}{Precision with label shifted by $t$ seconds} \\
& {0} & {1} & {2} & {3} & {4} \\
\hline
Ours      & 0.143 & 0.143 & 0.111 & 0.222 & 0.333 \\
CNN       & 1.518 & 1.518 \\
JAAD      & 0.018 & 0.142 \\
Keypoints & 0.029 & 0.180 \\
\end{tabular*}

\caption{Time taken to generate a single scale of 100 superpixels 
and a hierarchy at 100, 150, 200, 300, 400, and 600 superpixels.}
\label{tab:runtime}     

\end{table}

\begin{table}[htp]

\begin{tabular*}{\textwidth}{
  @{\extracolsep{\fill}\hspace{\tabcolsep}}
  l
  *{5}{S[table-format=1.3]}
  @{}
}
\toprule
& \multicolumn{5}{c}{Precision with label shifted by $t$ seconds} \\
\cmidrule{2-6}
& {0} & {1} & {2} & {3} & {4} \\
\midrule
Ours      & 0.143 & 0.143 & 0.111 & 0.222 & 0.333 \\
CNN       & 1.518 & 1.518 \\
JAAD      & 0.018 & 0.142 \\
Keypoints & 0.029 & 0.180 \\
\bottomrule
\end{tabular*}

\caption{Time taken to generate a single scale of 100 superpixels 
and a hierarchy at 100, 150, 200, 300, 400, and 600 superpixels.}
\label{tab:runtime-BETTER}

\end{table}

\end{document}

在我看来，第二种格式更好。